OLIVIA Palermo (above) is using MTV’s “The City” to learn how to be a “serious actress.” The fauxcialite was at the opening of the new W Hotel in Atlanta, where, according to our spy, “Olivia was talking about how she wants to be a serious actress but that acting is so much harder than she thought it would be.” Palermo also confessed, “I’m shooting ‘The City’ to get used to being in front of the camera.” We hear she’ll have one more year of practice – the low-rated show has inexplicably been picked up by MTV for a second season.